Android Download Manager "Download Unsuccessful"

Question

This is my first time trying to implement DownloadManager and no matter what I try, I always get a notification saying "Download unsuccessful." I've looked at many other SO forums, a few tutorials, and what I have should work. Yes, I've set internet and external storage permissions in the manifest file. And yes, I've given storage permission in the app settings on the phone. I've tried this on both an Android emulator running API 28 and a real phone running the same. Here is the code I have:

        String url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4";

        DownloadManager downloadManager = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
        DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));

        request.setTitle("title");

        request.setDescription("Your file is downloading");

        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);

        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_MUSIC, "" + System.currentTimeMillis());

        request.allowScanningByMediaScanner();
        request.setAllowedOverMetered(true);
        request.setAllowedOverRoaming(true);

        //Enqueue download and save the referenceId
        long downloadReference = downloadManager.enqueue(request);

        if (downloadReference != 0) {
            Toast.makeText(getApplicationContext(), "download started", Toast.LENGTH_SHORT).show();
        }else {
            Toast.makeText(getApplicationContext(), "no download started", Toast.LENGTH_SHORT).show();
        }

Any help or suggestions are appreciated. Thanks.

Have you tried it using other url ? – Abhay Koradiya Dec 10 '19 at 04:41 — Abhay Koradiya, Dec 10 '19 at 04:41
@AbhayKoradiya yes, I've tried 3 urls – Ethan Shoe Dec 10 '19 at 04:43 — Ethan Shoe, Dec 10 '19 at 04:43
only issue is coming on 28? – Abhay Koradiya Dec 10 '19 at 04:44 — Abhay Koradiya, Dec 10 '19 at 04:44
@AbhayKoradiya I haven't tried another API – Ethan Shoe Dec 10 '19 at 04:44 — Ethan Shoe, Dec 10 '19 at 04:44
did you check your mobile storage space? – Quick learner Dec 10 '19 at 05:22 — Quick learner, Dec 10 '19 at 05:22

score 11 · Accepted Answer · answered Dec 10 '19 at 05:16

11

This issue occur due to network security. If You are using un-secure url in above pie API, then it can't execute your url. Check Official Documentation.

Reason for avoiding cleartext traffic is the lack of confidentiality, authenticity, and protections against tampering; a network attacker can eavesdrop on transmitted data and also modify it without being detected.

Add following in manifest to bypass all security.

<application
  android:name=".ApplicationClass"
  ....
  android:usesCleartextTraffic="true">

answered Dec 10 '19 at 05:16

Abhay Koradiya

2,068
2
15
40

That was it. I had it added but I hadn't added the url to the test website I was trying to download from. Thanks for your help! – Ethan Shoe Dec 10 '19 at 06:03
1

I spent HOURS trying to get a .apk download to work, and FINALLY this is the answer that explained why it was failing. Thank you! – birgersp May 21 '21 at 08:50
worked for me. Thank You – Pratik Gaikwad Jun 13 '23 at 10:31

score 4 · Answer 2 · answered Jan 11 '21 at 17:11

My Experience on 1/11/2021, min SDK 19, Target SDK 30

I spent a day on using Download Service and finally it worked. To sum it up for anyone who wants to try for the first time:

Dont't forget to add WRITE_EXTERNAL_STORAGE and INTERNET permissions in Manifest.
use requestPermissions() to grant permission from user.
use getExternalFilesDir() instead of getExternalStorageDirectory().
If you're downloading from http:// so add usesCleartextTraffic="true" to manifest.

Android Download Manager "Download Unsuccessful"

2 Answers2

Linked